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Compound

PQQ (Pyrroloquinoline Quinone)

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PQQ (Pyrroloquinoline Quinone). Redox cofactor for mitochondrial biogenesis.

How it works. Activates PGC-1α and CREB; mitochondrial biogenesis.

What the research supports. 1 graded claims. Strongest: Reduces fatigue (moderate).

How much to take. Typical dose: 10–20 mg.

Side effects and interactions. 1 medication interaction listed. No serious side effects listed at normal doses.

Stacking. Pairs well with NAD+ precursor (NMN or NR), Omega-3.

Common forms. Available as Capsule or softgel, Powder, Sublingual or buccal, Liposomal liquid.

Key studies. 8 studies cited. The strongest are listed with links to PubMed.

Community. Experiences from people who have tried PQQ (Pyrroloquinoline Quinone). Anecdotes are not medical advice.

PQQ (Pyrroloquinoline Quinone). Redox cofactor for mitochondrial biogenesis.

Molecular structureC14H6N2O8 · 330.21 g/mol

What it is

Redox cofactor for mitochondrial biogenesis.

Food sources

Endogenously produced or biosynthesized moleculeStandardized pharmaceutical- or food-grade supplementCombined with cofactors that improve absorption or activity

Goals

Energy ProductionHealthy Aging

How it works

Activates PGC-1α and CREB; mitochondrial biogenesis.

Pathways

  • Activates PGC-1α
  • mitochondrial biogenesis

Effects

  • ↓fatigue decreases

What the research supports

Reduces fatiguemoderate

Strong: consistent results across large trials or meta-analyses. Moderate: several trials, mostly positive. Limited: small or mixed studies. Preclinical: animal or cell research only.

Typical dose
10–20 mg
TimingConsistent daily timing recommended; split larger doses if GI tolerance is a concern.
With foodWith a meal containing fat for fat-soluble compounds; otherwise either.
Best formMost evidence is based on the capsule or softgel form.
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Side effects & interactions

Common side effects

  • Headache at high dose

Medication interactions

Prescription medications (general)minor

Always disclose PQQ (Pyrroloquinoline Quinone) use to your prescriber — additive, antagonistic, or pharmacokinetic interactions are possible.

Check any supplement–medication combination with your pharmacist before starting.

Combines with

Pairs well

  • NAD+ precursor (NMN or NR)Complementary mitochondrial and sirtuin support.
  • Omega-3Lowers inflammation and supports membrane integrity.

Common forms

  • Capsule or softgel
  • Powder
  • Sublingual or buccal
  • Liposomal liquid

Key studies

8 studies cited in total.

PubMed: PQQ (Pyrroloquinoline Quinone) — Reduces fatigue ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching PQQ (Pyrroloquinoline Quinone) and "Reduces fatigue". Filter by RCT, meta-analysis, or year on the results page.

PubMed: PQQ (Pyrroloquinoline Quinone) — randomized controlled trial ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching PQQ (Pyrroloquinoline Quinone) and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

PubMed: PQQ (Pyrroloquinoline Quinone) — meta-analysis ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching PQQ (Pyrroloquinoline Quinone) and "meta-analysis". Filter by RCT, meta-analysis, or year on the results page.

Discussion

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